Fuel-elevating device for automobile-engines.



W. JAY.

FUEL ELEVATING DEVICE POE AUTOMOBILE ENGINES.

' APPLICATION FILED JUNE 26,1914.

15,1 32,940. Patented Mar. 23, 1915.

"R "if Zhi/62270.? fl/w Jay Zigi WEBB JAY, or CHICAGO, ILLINOIS;

FUEL-ELEVATING- DEVICE FOR AUTOMOBILE-ENGINES.

1,132,940. i Specification of Letters Patent. I, Patented Mal.. 1915 Application1ea'June2e;1914; serialmi.a4r,'41r. v

To aZZ'whom iztmag/ concern: i y

Be it known that I, WEBB JAY, a citizen of the United States, residing at lChicago, in the county of Cook and State of Illinois, have inventedl new and useful Improvements in Fuel-Elevating Devicesfor Automobile- Engines, of which the following isla specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide a convenient and easily accommodated means for elevating the liquid fuel supply for an internal combustion engine ofan automobilev from a storage tank in the usual low position, to a position froml which it may be fed by gravity to the carbureter.

It consists in the elements and features of construction shown and 'described as indi* cated in the claims. y f In the drawings: Figure 1 is a side elei vation of a structure embodying this invention, shown inassociation with an automof' bile engine o r parts thereof. Fig. 2 is a' vertical section lthrough the elevated receptacle and the vacuum-producing device.

Fig. 3 is a sectional view of a different form of pumping device showing different means of actuating the same.

VIn the structure shown in the drawings, l-

represents a receptacle for liquid fuel located at a position from which fuel-may be fed by gravity to the carbureterlndicated in dotted lines at 2.

3 is a diaphragmpump device comprising adiaphragm, 4, suitably clamped between aflange, 5, at the margin of the chamber, 7, closed by the diaphragm'and an exterior l vclamping ring, 6. The diaphragm is connected at its center by means of -suitablc clamping disks, Sjand 8a, to an operating lever, 9,'whichv is actuated by a reciprocating rod, 9, terminating the eccentric strap, 10, of an eccentric, 11, mounted upon a shaft, 12, which may lbe a countershaft driven from any other convenient shaft, as the cam shaft,'12a, the showing of these parts in the drawings being intended to be understood as diagrammatic only. The diaphragm chamber, 7, is mounted in ,a pipe line be tween twovcheck valves, 13 and 14, bothA opening in the same direction, the pipe line to the valve, 13, leadingv from a low-level storage tank, 16, and pipeline from the check valve, 14,leading upward and turning down receptacle, 1. At each rotation of the shaft,

kceptacle, 1.

for discharge into the top of the Y I 12,'the yresultingdi's'p'lacemer'it of the diathe. opposite displacement will force the oil on past the check valve 14, eventually lifting 1t high enough for discharge into the re- To avoid the necessity of .keeping Watch of the liquid level in the receptacle, 1,

prevent itV from being filled to over-flowing, a vent tube, 15, is provided, leading from the diaphragm chamber, 7, to the upper end of the receptacle, 1, and this vent tube is storage tank past thecheck valve, 13, and A normally closed, preferably outside the rec eptacle, by a valve, 17, attached to an arm, 18, which carries afloat, 19,in the receptacle, whichfloat operates normally-as a weight tc hold the valve seated; but when the liquid level in the receptacle, 1, rises so as to partly submerge the float, it is lifted and opens the valve, venting the diaphragm chamber so that no pumping action results; from the vbration of the diaphragm. When the level of the liquid in thereceptacle falls' so as to permit the valve, 17, tobecome again seated,

the vibration of the diaphragm operates as before, to pump lthe oil from the main supplytank to the receptacle, l., In order'- that' this device-may not tend to cause a rapidly fluctuating level of liquid in the.- receptacle, but, on the contrar ,may permit'and tend to cause a considerab y wide rangebetween the high' and low levels atvwhich respectively the valve is opened and closed, it is only necessary to give the port which said valve closes an area. suicient to render the suction on the valve'tendinglto hold. it seated great enough to require a predetermined depth of submergence of thel ioat to develop upward pressure enough thereon to force the valve off its seat, by making the float'in the form of a comparatively long and slender cylinder as illustrated, a comparatively small area of the port will require considerably deep submergence of the float to forcethe valve off the seat; and acorresponding fall of level of the liquid will be necessary to, again causev the valve to reach its seat so as to experience the suction. and be held on the seat. This feature, relatively large vertical and small horizontal dimensions ofthe float, is claimed in my copending application, Serial No.

847,420, liled simultaneously herewith. It

will be obvious that'the described action of.

.4o check valves,'l3 and 14:, therein. l'i'jhe piston,

the pumping device is notdependent upon its beingofthe diaphragm type, and other well known forms of pump may be substi tuted without departinglfrom the invention;

but the advantageslof a diaphragm pumpv are obvious, especially when the situation and space available'are .adapted for rela-A tively large area and short stroke of the back-and-forth moving member of the pump, and also because of the importance of ,having no air leakage Whatever past said member. It wiltbe obvious also that the operation willbe in all essential respects similar iffthe liquid pumped is other than the fuel oil, and if thedevice supplied is something other vthan the carbureter. Lubricating oil, for example, may be supplied in the same way to an `elevated receptacle,

from which it maylow bygravity to the place of service; and ll do not, therefore, regard this invention as limited to the one use shown and described.

In the form shown in Fig. .3, the pump` ring device represented is of the pistontype,

and itis actuated by connection with the engine 'exhaust valve, devices being provided in'fthe connection for reducing the speed so .thatthe pump stroke shall not be so rapidas to cause the operation yto be defeated by the inertia of the'liquid which is to be moved;v

Inthis'form there is a pump cylinder, 30, of vwhich the' intake and discharge is at the x lower end, the piston, 31, reciprocating in 4the upper open end. The cylinder communi cates through the head by a passage, '33, of

' relatively small diameter, but .longrenough f to ,contain what'one piston strokewill draw,

'with the pipe line or other conduit which connects the mainssupp'ly-tank with the elemain-35, with the -crank wrist, '36, of a crank haust valve,` The'vvusually rapid action of.v the'exhaust valve gives, by `means of the Y pawl-and-ratchet vwheel connection, a rela-p tively slow rotation tothe crankshaft and vated fuel receptacle .intermediate the two 31, 'is connected for reciprocation by av pit shaft, 37, on which there isa ratchet wheel,

38,'frotated by means of a pawl, 3 9, which is connectedwith thel stem of the engine eX- r'eciprocates the piston for pumping at *a relatively slow speed, .which is necessary in 1 order-4to obtain the flow desiredof liquid in 'thelpi'pe line between the tank and receptacle; for it'will be understood that theinertia of the liquid to be moved in the. pipe line wouldpr'event it from responding promptly by movement throughthe .pipe line toa very' rapid action ofthe piston, becauselin suchv rapid action the resiliencyofthe' air movedv bythe piston would prevent the liquid from' following positivclythe strokes of the pis; ton, and before the liquid would startv upon the drawing or forcing stroke ofthe piston, the-reverse vstroke would be reached, theair cushion between experiencingall theieifect of both strokes without transmitting any substantial movement to the liquid. From this arises theneces'sity for reducing the 'speed of the piston from that of the exhaust valve when the latter is used as the means of actuating the pump.

1. Inv combination with an automobile engine, a low level liquidvsupply tank, an

elevated liquid frece'ptaclega pipe line con-` necting them; ltwo check valves: in -the pipev line, both opening for flow toward said receptacle, and adapted to be seated by flow inthe oppositedirection; a pump chamber set off from the pipe line and communicatingtherewith between said two vcheck valves; a back-and-forth vibrating'member which eXteriorly clcsessaid rpump chamber, and 'exteriorly connected means for operating said back-and-forth movingmember, the

capacity of .the connecting passagefrom the pump chamber to the pipe line being as" great as the displacement of the vibrating 'member at each stroke.

,2. In combination with an internal combustion engine of an automobile, a low level y main storage tank and a higher level re ceptacle for liquid, a-pipe1 line connecting them; two check valves in the pipe line opening for HowV from the main tank to the elevated receptacle and adapted to be closed by flow in' the opposite direction; a chamf ber communicating with the pipe line inter- -mediate the check valves; a diaphragm eX- teriorly closing j said chamber and connec tions operated by the ,j engine outside the which oil required bythe engine may be Y supplied thereto by gravity; apipe line con- Anecting the main supply tank' and the ele- 'vated receptacle; 4two check'valves in the pipelinea pump chamber communicating withthepgipe line intermediate the check valves 'and ,ektendinghigherthan itsA said communication; ai" back-and-forth moving 'member which closes said pumpV chamber beyondl said higher-extending portion thereof, whereby an air pistonis obtained 'be'- tween said back-and-forth moving member for directly aetuatilflg, the liquid by the movement of said member, and eXteriorlyv connected means forgiving back-and-forth movement to said member.

4.' ln combination' with anvengi'ne' requiring oil, a main'oilv supply tank located at a low level; a receptacle located at a level from WhiCh-the'cil required by the engine may be supplied 'thereto by1 gravity; a pipe line connecting the main supply tank With the elevated receptacle; two check valves in the pipe line opening for flow toward the receptacle and adapted to be closed by flow in the opposite direction; a pump chamber communicating With the pipe line intermediate the check valves; a back-and-forth moving member4 which closes said pump chamber at the side opposite its communication with the pipe line; eXteriorly-connected engine-operated means for giving back-and-forth lmovement to said member; an air vent pipe leading from the pump chamber to the vicinity of the elevated receptacle; a normally closed valve for controlling the entrance of air to said vent pipe, and a float in the receptacle adapted to be operated by the liquid contents thereof at a pre-determined high level of said liquid for opening said valve.

5. In combination with an engine requiring oil, a main oilasupply tank at a lou7 level; a receptacle located at a level from which the oil required by the engine may be supplied thereto by gravity; a pipe line connecting the main supply tank with'the elevated receptacle; tWo check valves in the pipe line opening for flow toward the receptacle and adapted to be closed by flow in the opposite direction; a pump chamber communicating with the pipe line intermediate the check valves; a backand-forth moving member which closes said pump chamber at the side opposite its communication With the pipe line; eXteriorly-connected engine-operatedv means for giving said member its back and forth movement; an air inlet pipe leading from the pump chamber to the vicinity of the elevated receptacle; a valve for controlling entranceof air to said inlet pipe positioned for being held on its seat by the suction through said pipe; a device buoyed by the liquid in the receptacle. and connections from said buoyed device for forcing said valve off its seat against said suction upon a pre-determined submergence of said buoyed device. v

6. In combination With an engine requiringoil, a main oil supply tank at a low level; a neceptacle located at a level from which the oil required by the engine may be supi plied thereto by gravity; al pipe line confrom the pump chamber to the vicinity of the elevated receptacle; a normally closed valve for controlling the entrance of air to f' said vent pipe, and a fioat in the receptacle adapted to be operated by the liquid contents thereof at a pre-determined high level for opening said valve.

7. ln combination with an engine requiring oil, a main oil supply tank at a low level; a receptacle located at a level from Which the oil required by the engine may be supplied thereto by gravity; a pipe line connecting the main supply tank With the elevated receptacle; two check valves in the pipe line opening yfor flow toward the rec'eptacle and adapted to be closed by flow in the opposite direction; a ump chamber communicating With the pipe line intermediate the check valves; a diaphragm closing said chamber at the 'outer side;1 eX- teriorly-connected engine-operated means for vibratingthe diaphragm; an air vent leading from the pump chamber to the vicinity of the elevated' receptacle and which communicates With the pump chamber; a valve for controlling the entrance of air to said vent pipe positioned for being held on its seat by the suction through said pipe; a device buoyed-by the liquid in the receptacle, and connections therefrom for forcing said valve off its seat against the suction upon the pre-determined submergence of said device.

In testimony whereof, I havehereunto set my hand at Chicago, Illinois, this 24th day of June, 1914.

WEBB JAY.

Witnesses:

EDNA M. MACINTOSH, LUCY I. STONE. 

